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Cant host games in steam.
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When me, or one of my friends, try to host a server to a fun coop game the other guys can't join the server. Just the host is able to play.


Legacy ID
Server Browser Steam

Event Timeline

RicardoLew edited Additional Information. (Show Details)
RicardoLew set Category to Server Browser Steam.
RicardoLew set Reproducibility to Always.
RicardoLew set Severity to None.
RicardoLew set Resolution to Open.
RicardoLew set Legacy ID to 3306642113.May 7 2016, 6:47 PM

Have you forwarded the related ports?

I've been having the same problem too, and now that GameSpy is gone it seems impossible for the average person to play co-op.

You need to forward several UDP ports to your PC:
2300 - 2305

(Google if you don't know how to do it in your router.) If it still doesn't work just enter your friend's IP via the "Remote" button next to the "Join" button.

It works now, but that doesn't mean that this problem is natively fixed in the game. It is still something that should be fixed along with any other problems.

Forward UDP ports doesn't work to me. I need to play in LAN :/

Same issue too.
Port fowarding didn't help.

Cant host MP game (v.1.22.125300)

Same issue. I tried port forwarding, but without luck. When click "new" in the server list and I switch from lan to internet in the creation menu it appears an error: "please ensure your game has internet accessibility via the following network ports: 2302, 2303".